Effect the Intercropping of Some Legume Crops and Spraying Glyphosate Herbicide on Control Orobanche crenata Forsk and Faba Bean Productivity

Abstract

This study was carried out at Assiut government on a farm naturally infested with Orobanche crenata during 2021/2022 and 2022/2023 seasons. The objectives of this recent study were to investigate the effect of intercropping some trap crops i.e; (Fenugreek, Lupine and Egyptian clover), spraying glyphosate and hand pulling on the control of controlling broomrape yield faba bean and its components. The results obtained revealed that intercropping treatments, spraying with glyphosate and hand pulling would help in reducing the infestation of Orobanche in faba bean. Consequently, the number of branches, number of pods and pod weight/plant of faba bean were significantly increased with intercropping with each of fenugreek, lupin and Egyptian clover. Seed yield /plot of faba bean cultivars increased with all broomrape control treatments. Misr1 cultivar was associated with a decreased the number and dry weight of broomrape spikes/m 2 as 13.9 and 32.0% and by 24.5 and 37 % in first and the second season compared with Giza 716 cultivar, respectively. The interaction between intercropping systems, glyphosate, hand pulling treatments and cultivars gave the highest reduction in the number and dry weight of broomrape in both seasons and increased the faba bean seed yield. Consequently, the economic return also increased. Both stepwise and simple regression analyses exerted that that the seed yield/plant was effective for seed yield/plot with contribution of R 2 = 0.231. Other traits were ranking after seed yield/plant..The remarkable obtained negative and highly significant correlation recorded between seed yield/plot and each of number of broomrape/m 2 (-0.828** and -0.737**)